/*
 * Copyright (c) 1996, 2003, Oracle and/or its affiliates. All rights reserved.
 * ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
 *
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/*
 * Licensed Materials - Property of IBM
 * RMI-IIOP v1.0
 * Copyright IBM Corp. 1998 1999  All Rights Reserved
 *
 */

package com.sun.corba.se.impl.corba;

import java.util.Vector;

import org.omg.CORBA.Any;
import org.omg.CORBA.Bounds;
import org.omg.CORBA.NVList;
import org.omg.CORBA.NamedValue;

import com.sun.corba.se.spi.orb.ORB;

public class NVListImpl extends NVList {

  private final int INITIAL_CAPACITY = 4;
  private final int CAPACITY_INCREMENT = 2;

  private Vector _namedValues;
  private ORB orb;

  public NVListImpl(ORB orb) {
    // Note: This orb could be an instanceof ORBSingleton or ORB
    this.orb = orb;
    _namedValues = new Vector(INITIAL_CAPACITY, CAPACITY_INCREMENT);
  }

  public NVListImpl(ORB orb, int size) {
    this.orb = orb;

    // Note: the size arg is only a hint of the size of the NVList.
    _namedValues = new Vector(size);
  }


  public int count() {
    return _namedValues.size();
  }

  public NamedValue add(int flags) {
    NamedValue tmpVal = new NamedValueImpl(orb, "", new AnyImpl(orb), flags);
    _namedValues.addElement(tmpVal);
    return tmpVal;
  }

  public NamedValue add_item(String itemName, int flags) {
    NamedValue tmpVal = new NamedValueImpl(orb, itemName, new AnyImpl(orb),
        flags);
    _namedValues.addElement(tmpVal);
    return tmpVal;
  }

  public NamedValue add_value(String itemName, Any val, int flags) {
    NamedValue tmpVal = new NamedValueImpl(orb, itemName, val, flags);
    _namedValues.addElement(tmpVal);
    return tmpVal;
  }

  public NamedValue item(int index)
      throws Bounds {
    try {
      return (NamedValue) _namedValues.elementAt(index);
    } catch (ArrayIndexOutOfBoundsException e) {
      throw new Bounds();
    }
  }

  public void remove(int index)
      throws Bounds {
    try {
      _namedValues.removeElementAt(index);
    } catch (ArrayIndexOutOfBoundsException e) {
      throw new Bounds();
    }
  }
}
